Outside the MSI you need to use the SQL statements to query the Property table.
On Wed, Nov 18, 2009 at 7:26 AM, Jiang, Chunyan (GE Healthcare) < chunyan.ji...@ge.com> wrote: > Hi, > > I developed one app.msi to intall one app. And I need to develop one > bootstraper.exe to retrieve the ProductCode of previously installed app. > Since it is multiple instance installation, there will be more than one > ProductCode. > > I have used some MSI functions to retrieve the property when developing > the installer with WiX, like: > ::MsiGetPropertyW(hInstaller, L"PREVIOUSFOUND", ProductIDbuffer , > &length1); > > It is one custom action dll in WiX project. Here, MSIHANDLE hInstaller > will pass the handle to the function. It is inside the MSI project. So > it is easy. But how to get such handle outside the MSI project? > > I found there is one function: > UINT MsiGetProductCode( > LPCTSTR szComponent, > LPTSTR lpProductBuf > ); > > It uses component code to retrieve product code. I have the component > code in hand. However, there will be more installation, which use the > same component code. Which one will be returned? > > > Could some one help me? > > Chunyan > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus > on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users > > -- virtually, Rob Mensching - http://RobMensching.com LLC ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
